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Author
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Topic: Best way to put in port plates without removing the heads
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Built351c
Gearhead Posts: 140
From: Big Lake, MN
Registered: Dec 2001
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posted 10-23-2002 03:17 AM
  
Is there a way to safely put intake plates in a 351 4v head without removing it from the engine. I would like to get a TFC or a Parker Funnelweb, but in order to take the heads off the motor I would have to remove it from the car. I have ARP head studs in the motor and in a 69 Mustang I just dont have the room to remove the heads without the studs interfering.
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Rustang
Gearhead Posts: 821
From: Clarion PA
Registered: Nov 2000
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posted 10-23-2002 05:08 AM
I pinned my Roush plates in with small machine screws and then used epoxy. The screws helped draw the plates into place, squishing the epoxy down. The set screws probably don't do much after the epoxy cures. What you might be able to do is epoxy the wedges in, then fabricate some small wedges out of wood for each port and drive them in to help the plates bond. Be sure the ports are absolutely clean and that the epoxy doesn't run down into the valve seat and combustion chamber! 
IMO I'd take the heads off because I'd think you'll end up doing some grinding on the ports afterword to get a good port match. ------------------
'68 mustang 351 clevor- 10.92@124
'67 Stang, 351W -11.18@118
'69 351C Torino-14.90@100
'78 Pickup 351W-15.56@88
'79 Pickup 460 ET=??
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Moneymaker
Administrator Posts: 27499
From: Lyons, IL, USA
Registered: May 99
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posted 10-23-2002 10:36 AM
Why bother?  ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
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Mpcoluv
Gearhead Posts: 1341
From: Charlotte NC usa
Registered: Apr 2001
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posted 10-23-2002 12:12 PM
quote:
Originally posted by Built351c:
Is there a way to safely put intake plates in a 351 4v head without removing it from the engine. I would like to get a TFC or a Parker Funnelweb, but in order to take the heads off the motor I would have to remove it from the car. I have ARP head studs in the motor and in a 69 Mustang I just dont have the room to remove the heads without the studs interfering.
You will probably want to work on the short turn radius on the heads which is altered a little with the inserts. I have played with the inserts some on a junk head and there is a little lip where the stuffers joins the top of the short turn radius. You may want to fill this gap with Epoxy.
Also removing the heads and making sure its done perfectly is much cheaper than having the engine try to inhale one of these inserts.
Can you remove the studs with the heads on?
Head bolts rule in a shock tower car. 
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clevelandstyle
Gearhead Posts: 1309
From: central Indiana
Registered: Jul 2001
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posted 10-23-2002 01:10 PM
quote:
Originally posted by Moneymaker:
Why bother?
Same here.  ------------------
Ben
Grabber Green '70 Mach I 351C 4V
Robbin Egg Blue '79 Fairmont 351C 4V
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Daniel Jones
Gearhead Posts: 898
From: St. Louis, MO
Registered: Aug 99
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posted 10-23-2002 05:31 PM
Alex and Ben,Is your problem with intake port stuffers based upon experience with
the Roush inserts or just the MPG style fences? What sort of rev
range? One of the guys in the Pantera club used the intake stuffers
and found it to help the low and mid-range on his 351C-4V. He did
also epoxy the intake ports floors to match but eventually the epoxy
came loose and he blew the motor. Dan Jones
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Built351c
Gearhead Posts: 140
From: Big Lake, MN
Registered: Dec 2001
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posted 10-25-2002 03:42 PM
I already had port work done on the heads and the intake flows very well. I just worried about the mismatch of the ports affecting performance. No I cannot take the heads out because I cannot get all of the studs out of the motor due to the tight engine bay of the 69 mustang. I will wait a little longer for the Holley strip dominator, but I think I will just buy the Funnelweb and use it without the port plates and compare it to my x-celerator once I get to the track next spring. Right now I am saving for a Holley 950hp.
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Mpcoluv
Gearhead Posts: 1341
From: Charlotte NC usa
Registered: Apr 2001
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posted 10-25-2002 04:18 PM
quote:
Originally posted by Built351c:
I already had port work done on the heads and the intake flows very well. I just worried about the mismatch of the ports affecting performance. No I cannot take the heads out because I cannot get all of the studs out of the motor due to the tight engine bay of the 69 mustang. I will wait a little longer for the Holley strip dominator, but I think I will just buy the Funnelweb and use it without the port plates and compare it to my x-celerator once I get to the track next spring. Right now I am saving for a Holley 950hp.
I'm sure that you could epoxy them in place with the heads on. I am too paranoid to try however.
Take an arc welder and weld the nuts to the studs. then you should be able to get them out, if you want to ruin expensive studs.
Terry Parker thinks that you will lose low end if you do not use the inserts.
I have his 4V intake sitting in my garage now. It looks pretty good, but it is one thick walled casting. It is also about 7" tall. I'm not sure that a stock hood would clear it with a carb. I'm waiting to get a chance to cut a 2.25 seat into my "Test" head and see if it picks up low lift flow before I pull off my "good" heads.
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Moneymaker
Administrator Posts: 27499
From: Lyons, IL, USA
Registered: May 99
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posted 10-25-2002 05:08 PM
Dan I track tested both the early G&R and MPG units. Both killed power (ET) over 5000 RPM. We did an entire thread on them a few months (year?) ago. Maybe Steve can find it?
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Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
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Built351c
Gearhead Posts: 140
From: Big Lake, MN
Registered: Dec 2001
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posted 10-25-2002 10:50 PM
Its a street/strip car mostly strip. Running a 4000 stall I dont think I am going to miss to much low end. I heard in another forum that Edelbrock is going to be making a new Performer RPM intake for the 351C and new heads. No specs on the heads, but I think I am going to write edelbrock and see if Vic will give out any info on the rpm range of this intake.
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SteveLaRiviere
Administrator Posts: 45869
From: Saco, Maine
Registered: May 99
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posted 10-27-2002 11:41 AM
quote:
Originally posted by Moneymaker:
Dan I track tested both the early G&R and MPG units. Both killed power (ET) over 5000 RPM. We did an entire thread on them a few months (year?) ago. Maybe Steve can find it?
I think this is the thread you meant? https://mustangsandmore.com/ubb/Archives/Archive-000002/HTML/20000809-1-001383.html This also: https://mustangsandmore.com/ubb/Archives/Archive-000002/HTML/20020913-12-000733.html ------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150
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Built351c
Gearhead Posts: 140
From: Big Lake, MN
Registered: Dec 2001
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posted 10-28-2002 02:03 AM
Wow thanks for the great links. Very good reading. I will wait on the intake and see what happens with everyone on intake development. Maybe the Holley strip dominator will come out some day, but for now all I can do is wait.
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